Railway truck



Dec. 24, 1929. E. G. HALLQUIST RAILWAY TRUCK Filed Feb. 1l. 1928 4Sheets-Sheet ZNVENTO :-I. -ML w-- Dec. 24, 1929. E. G. HALLQUlsT1,740,508

RAILWAY TRUCK Filed Feb. l1. 1928 4 Sheets-Sheet 2 NMEA/TOR EinarHa//gU/'Sl' Dec. 24, 1929. E. G. HALLQuls-r I 1,740,508

RAILWAY TRUCK Filed Feb. ll. 1928 4 Sheets-Sheet 5 gigi.

Dec. 24, 1929; E. G. HALLQUIST RAILWAY TRUCK 4 snets-sneet 4 Filed Feb.ll. 1928 Patented Dec.. 24, F1929 UNITED STATES PATENT lolllcE EINAR G.HALLQUIST, OF EDWARDSVILLE, ILLINOIS, ASSIGNOR, BY MESNE ASSIGN- MENTS,TO GENERAL STEEL CASTINGS CORPORATION, OF GRANITE OIIY, ILLINOIS,

A CORPORATION OF DELAWARE nauwer frauen Application filed February 11,1928. Serial No. 253,636. l

My invention relates to railway rolling stock and consists in a noveltruck structurel adaptedv to be used for heavy duty.

One object of my invention is to reduce the wheel load and this objectis accomplished by providing four axles and eight wheels 1nstead of twoor three axles and four or sin wheels.

Another object ol my invention is to make the wheel base as short aspossible,thereby reducing the extent which the body overhangs tle centerplate and also reducing the necessary side play of the axles in theirjournals. l attain this object by placing the middle wheels oi the truckvery close toeach other.

f vSuch arrangement makes it diiiieult to vprovide brake heads and otherbrake gear-between the middle wheels and another object of my inventionis to provide suicient braking area, which object l attain by providingclasp brakes on the end wheels of the truck and single brakes on theouter portions of the intermediate wheels of the truck.

lAnother object of my invention is to provide` a bolster especiallyadapted for heavy duty and is partially attained by making the centerportion of the bolster of deeper and stronger cross section (such as abox cross section) than ordinarily. The spaced intermediate axles of aneight wheel truck readily' Y accommodate such a bolster and'where thebolster may be elevated sufciently to clear an underlying axle, abolster with such a center portion may be used on a sin wheel truck.

Another object of my invention is to provide a simple truck tramesupporting equalizing system' which eliminates bending moments at thecenter of the wheel piece due to vertical loads. p I attain thisobjectby proriding independent equalizing systems for each pair of axlesand by supporting the truck frame at a plurality of points along itslengthl: i 'y v 'lhe above and various other more detailed objects areattained by the structure illustrated in the accompanying drawings, inWhich-'f f Figure 1 is a one-half longitudinal vtop l view of a truckembodying a preferred form` of 'my invention.

F igure/Q is in part a side elevation of and l in part a sectiomon 'thelongitudinal center line of the structure shown in Figure 1.

Figure 3 is a` side elevation, largely diagrammatic, illustrating thebrake rigging applied to the truck shown in Figures 1 and?,

the rigging being omitted from Figures 1 and v i 2 for the purposes ofmore clearly illustrating the other structure.

' Figure d is a transverse section on the line 1-4 of Figure 1.

Figure 5 is a one-half end view of the truck.

Figures 6 and 7 correspond to Figures 1 and 2 but illustrate a modiedform of my invention in which the center bolster is integral with thetruck traine.

Figure 8 is a one-half longitudinal top view and l Figure 9 is a sideelevation of a four wheel truck embodying some of the features of myinvention, part of the structure being broken away in Figure 9 to'moreclearly illustrate other parts of the structure.

Figure 10 is a vertical transverse section on line 1 0-10 of Figure 9.

'lhe truck illustratedin Figures 1 to 5 com-f prises four axles 1, 2, 3,and d mounted on which are supported leaf springs 9 and 10l which, asreadily understood, will be duplicated on the righthand end of thetruck.-

'lhese springs support the truck frame comprising wheel pieces 11, crosstransoms 12 with lateral anges 12, and end rails13 and suitable brakehanger brackets 14C,- equalizer tulcrums' 1,5, spring caps 16, and otherdetails Y 90.

as may be desired.

The springs support the frame throu l1 an equalizing system includingequalizers l suspended lfrom the springs by links19 and positionedbetween the sides of the box-shaped wheel pieces 11 and tulcrumedthereon as indicated at 18. The inner end oi each spring 10 isanchoreddirectly to the wheel piece by a hanger 20 located near the longitudinalcenter of the truck and the outer end of sprin Q supportsthe truckthrough a hanger 21 an a coiled spring 22 seated oncap 23 carried by thehanger. lt will be noted that the spring system indicated in the sideelevation portion of Figly into the space between the e' axles.

ure 2 is connected to the frame independent of the similar spring systemon the other end ofthe truck. lt will-also be noted that each of thesespring systems supports the Ltruck frame at a point near its ends, at apointintermediate the wheels 5 and 6, and at a point near the center ofthe truck.

The superimposed load is transmittedto the truck frame by means of acenter bolster comprising a center portion 24 having a generalbox-shaped cross section and located between axles 2 and?) andprojecting downw''ldis center` bolster is provided wi h` `box-shapedkarms 25'which extend upwardly from the centerportion to clear axles 2and 3 and then project downwardly and outwardly so as 'i to extend underthe transoms l2 from which vas the center bolster is supported by meansof links 26, the lower endsof which engage pins 27 seated in spacedbearings 23 providedon the box-shaped ends of the center bolster arms25. This' arrangement places the supporting pins in double shear similarto the arrangement for the pins 29 at the upper ends of links 26.- 'lhisarrangement also. provides a maximum amount of strength for the centerbolster arms and avoids the likelihood of failother.

ure of these center bolster members when heavily loaded. l

' Referring to Figure 3, it will beseen that the brake gear includes sixshoes 30 applied to the wheels on one side of thetruck which affords thesaine braking surface as has been provided in six wheel trucks withclasp brakes. The brakes are so arranged., however, that the middlewheels 6 and 7 only have brakes applied to their outer faces or theyfaces nearest the ends of the truck, and this yenables thetwo middlewheels to be placed so close together that they merely clear each Thespace between wheels 5 and 6 and wheels 7 vand 8 must be large enough toprovide clearance for the transom members and this clearance issuiiicient to accommodate. brake rigging applied to each of the wheels.

This drawing also indicates the suspension of the brake hangers 3l fromthe brackets 14 which are formed integrally on the truck vframe.

f HIn the modification illustrated in Figures 6 and-7 ,the same axle andwheel arrangement is used but the truck frame includes an integrallyformed center bolster having the box-shaped center portion 32 withboxvshaped arms 33 united with the box-shaped transoms 34. Otherwise'thetruck construc- -tionis substantially 'the same as the preferred formillustratedn Figures 1 to 5 and'I retain the advantages inherent in theclose coupling weones `oit the middle wheels and in the independent 'theframe, supported by springs 41 mounted on equalizers 42, includes spacedtransoms 35, each box-shaped in cross section, and pivoted supportinglinks 36. 'lhe truck bolster 37 is box-shaped in cross section and hasdepending portions 38 at its ends, which depending portions are providedwith laterally extending arms 39 box-shapedin cross section andproviding spaced: bearings for the pins 40 by which-thevbolster issupported by links 36.

lln both of the link suspensions illustrated, the pinsat both ends ofthe links are placed in double shear and the bolster arms are shaped toprovide the greatest amount of strength for a given weight of metal.

Obviously, many variations in the details of the truck structure may bemade without departing from the spirit of my invention, and lcontemplate the exclusive use of all of the features of my truck,however used, which come within the scope of my claims.

ll claim:

l. lin a railway truck, eight wheels mounted on four axles, the twomiddle axles being nearer to each other than to the end axles, claspbrakes on the wheels of the end axles and single brakes on the faces ofthe wheels of the middle axles nearest to said end axles.

2.- .In an eight wheel truck, a frame including wheel pieces withpedestals for four axles, spaced cross transoms and transverse end railsbetween said wheel pieces, and brake hanger brackets formed integrallyon said transoms and end rails for mounting-brakes on both sides of theend wheels and at the outer side of each middle wheel.

3. In a railway truck, a rigid truck frame, two pairs of axles, transomsacross and rigid with said frame between the axles of each of saidpairs, and a truck bolster between saidk pairs and supported by saidtransoms.

4f. ln a railway truck, a truck frame, two

pairs of spaced axles, transoms across said frame between the axles ofeach of said pairs,

and, a center bolster having arms extending ,6.In a railway truck, aVframe including 'i spaced crosstransoms, and a truckv bolster; having abox-shaped body with arms extending longitudinally of the truck andcarried by said transoms. l

. 7. In a railway truck, a frame including spaced cross transoms, and atruck bolster having a box-shaped body with box-Shaped 1 30 to saidtransoms.

p agradece arms extending longitudinally of thetruck i and carried bysaid. transoms.

8. In a railway truck, a frame including spaced cross transomsbox-shaped in cross.

section, `and a truck bolster having a boxshaped bfody .with box-shapedarms extending longitudinally 4of, the truck 'and carried by saidtransoms. p 1

` ,9. In 'a railway truck, a frame/including wheel pieces box-shaped incross section,` spaced transoms-connecting said wheel pieces andbox-shaped in cross section, anda truck bolster having a `box-shapedbody with boxshaped arms extending longitudinally of the truck 4andcarried by said transoms.

l0. ln a railway truck, a frame including spaced c'ross transoms, axlesspaced from the centerof the truck., a truclx bolster between saidaxles, and box-shaped arms on said bol ster extending over said .axlesand connected l1. In a railway truck, a Yframe including .spaced crosstransoms, axles spaced from the center of the truck, atruck bolsterbetween said axles, and box-shaped arms on said bolster extendingupwardly over said axles and then downwardly beneath said transoms andsupported Vironi the latter.

l2. ln a railway truclr, a single truck trame including wheel pieces andspaced cross transomf's, two pairs of wheeled axles with journal"'boxes, equalizers supported lfrom said journal boxes and ulcrumed onand supporting said wheel-pieces adjacent said transorns, and a truckbolster carried by said transorns. y

i3.j ln a railwaytruclr, two pairs oil axles with wheels and journalboxesthereon, equalizers carried by the respective journal boxes 'j riedby' said of each.. pair of axles, and a frame including cross transomspositioned between the axles of eachjofssaid pairs, said frame beingcarequalizers adjacent said transorns. u f l ll. lh a railway truck, avsingle truck trarne, two pairs of axles journalled in pedestals rigidwith said frame, and independent v equalizlhg systems for supportingsaid trame portingsaid wheel from eabh of said pairs of axles.

l5. In a railway truck, two pairs ol axles, journalboxes, a frame withhollow wheel pieces, andequalizers housed in said wheel p1eces betweenthe axles of each oit' said pairs, said eqilalizersgbeing fulcrumed toand suppieces and-carried on said journal` boxes.

lti

16. ln a railway truclx, two pairs oi axles, journal boxes, a frame withhollow wheel pieces, and equalizers housed in said wheel pieces betweenthe axles of each of said pairs, said equalizers beingfulcrumed to andsupporting` said wheel pieces and carried on said journal- .boxes bymeans of spripgs housed in said wheel pieces. l

l'l". 'ln a railway truck, a single frame, four axles, and anequalizing'system supporting said frame at points spaced longitudinallyof the truck and located respectively outside of the end axles, betweenthe middle axles and between the middle axles and the end axles. j

18. ln a railway truck, a single frame, four axles and two independentequalizing systems, each supporting said frame at points spacedlongitudinally of` the truck and located respectively outside of the endaxles, between the middle axles, and between the middle axles and theend axles.

19. ln la railway truck, a frame, spaced transorns with lateral flanges,a pluralityof axles between said transoms and spaced so each other andproject under said flanges, and axles on the outer sides of saidtransoms and spaced from said first-mentioned axles sulciently for theirwheels to accommodate said transoms between them.

20. In a railway truclnta frame, spaced transonis, a plurality olaxlesbetween said transoms and spaced so closely thattheirK adjacent wheelsbarely clear each other, and axles on the outer/sides of said transomsand spaced from said lirst-mentionedaxles sufficiently for their wheelsto accommodate brake gear between them.

2l. ln a railway truck, a frame, spaced transoms, a plurality of axlesbetween said 'transorns and spaced so closely that their adjacent wheelsbarely clear each other, and

section, a bolster between said transoms having legs extending beneathsaid transoms and box-shaped in cross section, and hangers between thesides of said transoms pivotally suspending said bolster legs. ,l

24. ln a railway truck, two pairs ot axles,

a frame rwith hollow wheel pieces, and two equalizing systems housed invsaid ywheel pieces between the axles of each of said pairs respectively.v i

25. ln a railway truck, a trame including spaced cross transoms, axlesspaced from the" ion llO

enter of the truck, a truck bolster` between said axles and having abox-shaped cross sedtion, and box-shaped arms on said bolster extendingupwardly over said axles and downwardly beneath said transoms andsupported `from the latter.

26. ln a frame for a railway truck, wheel pieces with pedestals for thetruckk axles,v

closely that their adjacent wheels barely clear 80 i Y 4transverse endrails,y and spaced cross transoms extending between said wheel piecesand located between said end rails, the pedestals for two of said axlesbeing located between the ends of said transoms.

27. A' one piece frame for a railway truck comprising wheel pieces withpedestals for the truck axles, end rails and cross transoms integralwith said wheel pieces, ythe pedestals for two of said axles beinglocated between the ends of said transoms.

28. In a railway truck, a frame including spaced cross transoms, axlesspaced from the *center of the truck, a truck bolster between saidaxles, and arms on said bolster extending over said axles and connectedto'said transoms below the tops thereof.

29. In a railway truck, a one-piece truck frame including transversetransoms, two pairs of axles, the axles of each pair being on oppositesides of a respective transom, and a truck bolster located between saidpairs of axles and supported by said transoms.

30. ln a railway truck, a truck frame ini cluding four pairs ofpedestals rigid with the frame, two pairs of axles journalled in saidpedestals and two spring equalizing systems independently anchored tosaid frame, each system supporting said frame from one of said pairs ofaxles. f i

In testimony whereof ll hereunto aiiix my `signature this 25th day ofJanuary, 1928.

ElNAlFt G. HALLQUIST;

